I'm a sucker for doubles, and this Echinacea 'Double Delight' was introduced to me by landscape architect Michele McCann from Collective Efforts. It blooms forever, then cut it back and it blooms again. I love it.
Every year I plant double impatiens and 'Fiesta Purple Stripe' is a real winner in the garden. I've got containers filled with the plant, I hope I can get it again next year. It's funny how you can fall in love with a plant, but if you can't find it the next season you move on to a new love.